This web based training course was developed by the Bureau of Land
Management, National Training
Center. It is intended for entry-level cadastral surveyors, and
for those who feel the need for a refresher in the subject. Upon
completion of this self-paced course, you will be able to:
As an entry level Cadastral Surveyor, you are in the process of
building your career as a Professional Land Surveyor. The decisions
you make concerning the location of legal land boundaries are critical
to the proper management of the Public Lands. These decisions are
also important to the land owner on the other side of the boundary.
There are many laws governing the work you perform and it is essential
that you know and adhere to these laws in order to have a cadastral
survey which will stand up under legal scrutiny. This training course
covers the proper application of restoring lost corners by applying
the rules of proportionate measurement. Arriving at the correct
method, as outlined in The
Manual, to restore a lost corner and proper application of the
method will determine whether your survey will withstand a legal
challenge. You want to be correct in making these decisions.
This course will provide the necessary information to help you
make the correct decision and perform the necessary computations.
As a professional, it is not enough to merely carry out these computations
by means of a computer program. A professional fully understands
the mathematics involved and thereby gains a deeper understanding
of the process. For these reasons, you will be required to perform
all your calculations using only a basic calculator with trigonometric
In order to pursue this course, you will need the following materials:
Manual of Surveying Instructions, 2009, usually referred to
in this course as "the manual".
- Traverse computation sheets. You will need to print these as
you need them.
- A scratch pad, assorted pencils and a straightedge.
- A calculator with trigonometric capabilities is available by
selecting the calculator button on the navigation bar.